Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 309 [Rate centres in NPA 309] [Dial plan for NPA 309]

NXX: 925

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-925 A Tremont IL TRMTILXDRS0  1015 FRONTIER NORTH, INC. - IL 368      
309-925 0 Tremont IL PEORILPJDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 368      
309-925 1 Tremont IL PEORILPJXYX  224C ONVOY, LLC 368      
309-925 2 Tremont IL TRMTILXDRS0  1015 FRONTIER NORTH, INC. - IL 368      
309-925 3 Tremont IL TRMTILXDRS0  1015 FRONTIER NORTH, INC. - IL 368      
309-925 4 Tremont IL TRMTILXDRS0  1015 FRONTIER NORTH, INC. - IL 368      
309-925 5 Tremont IL TRMTILXDRS0  1015 FRONTIER NORTH, INC. - IL 368      
309-925 7 Tremont IL TRMTILXDRS0  1015 FRONTIER NORTH, INC. - IL 368      
309-925 8 Tremont IL PEORILPJX8Z  073H TELNYX LLC 368      
309-925 9 Tremont IL TRMTILXDRS0  1015 FRONTIER NORTH, INC. - IL 368      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.